Home / 20,644.07-28,504.81-13,476.17

Finding the Fourth Proportional to 20,644.07, 28,504.81 and 13,476.17

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Solution

The fourth proportional to 20,644.07, 28,504.81 and 13,476.17 is: 18,607.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644.07 : 28,504.81 = 13,476.17 : x
  2. Step 2: Convert to fraction form
    20,644.07/28,504.81 = 13,476.17/x
  3. Step 3: Cross multiply
    20,644.07x = 28,504.81 × 13,476.17
  4. Step 4: Simplify right side
    20,644.07x = 384,135,753.48
  5. Step 5: Solve for x
    x = 384,135,753.48/20,644.07
  6. Step 6: Final answer
    x = 18,607.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.